Refactor ChromeFraudulentCertReporter for code reuse by SSL reporting

chrome/browser/net/certificate_error_reporter.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/net/chrome_fraudulent_certificate_reporter.h"
+#include "chrome/browser/net/certificate_error_reporter.h"
 
 #include <set>
 
-#include "base/base64.h"
 #include "base/logging.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/stl_util.h"
 #include "base/time/time.h"
 #include "chrome/browser/net/cert_logger.pb.h"
 #include "net/base/elements_upload_data_stream.h"
 #include "net/base/load_flags.h"
 #include "net/base/request_priority.h"
 #include "net/base/upload_bytes_element_reader.h"
 #include "net/cert/x509_certificate.h"
 #include "net/ssl/ssl_info.h"
 #include "net/url_request/url_request_context.h"
 
 namespace chrome_browser_net {
 
-// TODO(palmer): Switch to HTTPS when the error handling delegate is more
-// sophisticated. Ultimately we plan to attempt the report on many transports.
-static const char kFraudulentCertificateUploadEndpoint[] =
-    "http://clients3.google.com/log_cert_error";
-
-ChromeFraudulentCertificateReporter::ChromeFraudulentCertificateReporter(
-    net::URLRequestContext* request_context)
-    : request_context_(request_context),
-      upload_url_(kFraudulentCertificateUploadEndpoint) {
+CertificateErrorReporter::CertificateErrorReporter(
+    net::URLRequestContext* request_context,
+    const GURL& upload_url)
+    : request_context_(request_context), upload_url_(upload_url) {
+  DCHECK(!upload_url.is_empty());
 }
 
-ChromeFraudulentCertificateReporter::~ChromeFraudulentCertificateReporter() {
+CertificateErrorReporter::~CertificateErrorReporter() {
   STLDeleteElements(&inflight_requests_);
 }
 
-static std::string BuildReport(const std::string& hostname,
-                               const net::SSLInfo& ssl_info) {
+void CertificateErrorReporter::SendReport(ReportType type,
+                                          const std::string& hostname,
+                                          const net::SSLInfo& ssl_info) {
   CertLoggerRequest request;
-  base::Time now = base::Time::Now();
-  request.set_time_usec(now.ToInternalValue());
-  request.set_hostname(hostname);
+  std::string out;
 
-  std::vector<std::string> pem_encoded_chain;
-  if (!ssl_info.cert->GetPEMEncodedChain(&pem_encoded_chain)) {
-    LOG(ERROR) << "Could not get PEM encoded chain.";
+  BuildReport(hostname, ssl_info, &request);
+
+  switch (type) {
+    case REPORT_TYPE_PINNING_VIOLATION:
+      SendCertLoggerRequest(request);
+      break;
+    case REPORT_TYPE_EXTENDED_REPORTING:
+      // TODO(estark): Double-check that the user is opted in.
+      // TODO(estark): Temporarily, since this is no upload endpoint, just
+      // log the information.
+      request.SerializeToString(&out);
+      DVLOG(3) << "SSL report for " << hostname << ":\n" << out << "\n\n";
+      break;
+    default:
+      NOTREACHED();
   }
-  std::string* cert_chain = request.mutable_cert_chain();
-  for (size_t i = 0; i < pem_encoded_chain.size(); ++i)
-    *cert_chain += pem_encoded_chain[i];
-
-  request.add_pin(ssl_info.pinning_failure_log);
-
-  std::string out;
-  request.SerializeToString(&out);
-  return out;
 }
 
-scoped_ptr<net::URLRequest>
-ChromeFraudulentCertificateReporter::CreateURLRequest(
+void CertificateErrorReporter::OnResponseStarted(net::URLRequest* request) {
+  const net::URLRequestStatus& status(request->status());
+  if (!status.is_success()) {
+    LOG(WARNING) << "Certificate upload failed"
+                 << " status:" << status.status()
+                 << " error:" << status.error();
+  } else if (request->GetResponseCode() != 200) {
+    LOG(WARNING) << "Certificate upload HTTP status: "
+                 << request->GetResponseCode();
+  }
+  RequestComplete(request);
+}
+
+void CertificateErrorReporter::OnReadCompleted(net::URLRequest* request,
+                                               int bytes_read) {
+}
+
+scoped_ptr<net::URLRequest> CertificateErrorReporter::CreateURLRequest(
     net::URLRequestContext* context) {
   scoped_ptr<net::URLRequest> request =
       context->CreateRequest(upload_url_, net::DEFAULT_PRIORITY, this, NULL);
   request->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                         net::LOAD_DO_NOT_SAVE_COOKIES);
   return request.Pass();
 }
 
-void ChromeFraudulentCertificateReporter::SendReport(
-    const std::string& hostname,
-    const net::SSLInfo& ssl_info) {
-  // We do silent/automatic reporting ONLY for Google properties. For other
-  // domains (when we start supporting that), we will ask for user permission.
-  if (!net::TransportSecurityState::IsGooglePinnedProperty(hostname)) {
-    return;
-  }
-
-  std::string report = BuildReport(hostname, ssl_info);
+void CertificateErrorReporter::SendCertLoggerRequest(
+    const CertLoggerRequest& request) {
+  std::string serialized_request;
+  request.SerializeToString(&serialized_request);
 
   scoped_ptr<net::URLRequest> url_request = CreateURLRequest(request_context_);
   url_request->set_method("POST");
 
   scoped_ptr<net::UploadElementReader> reader(
-      net::UploadOwnedBytesElementReader::CreateWithString(report));
+      net::UploadOwnedBytesElementReader::CreateWithString(serialized_request));
   url_request->set_upload(
       net::ElementsUploadDataStream::CreateWithReader(reader.Pass(), 0));
 
   net::HttpRequestHeaders headers;
   headers.SetHeader(net::HttpRequestHeaders::kContentType,
                     "x-application/chrome-fraudulent-cert-report");
   url_request->SetExtraRequestHeaders(headers);
 
   net::URLRequest* raw_url_request = url_request.get();
   inflight_requests_.insert(url_request.release());
   raw_url_request->Start();
 }
 
-void ChromeFraudulentCertificateReporter::RequestComplete(
-    net::URLRequest* request) {
+void CertificateErrorReporter::BuildReport(const std::string& hostname,
+                                           const net::SSLInfo& ssl_info,
+                                           CertLoggerRequest* out_request) {
+  base::Time now = base::Time::Now();
+  out_request->set_time_usec(now.ToInternalValue());
+  out_request->set_hostname(hostname);
+
+  std::vector<std::string> pem_encoded_chain;
+  if (!ssl_info.cert->GetPEMEncodedChain(&pem_encoded_chain))
+    LOG(ERROR) << "Could not get PEM encoded chain.";
+
+  std::string* cert_chain = out_request->mutable_cert_chain();
+  for (size_t i = 0; i < pem_encoded_chain.size(); ++i)
+    *cert_chain += pem_encoded_chain[i];
+
+  out_request->add_pin(ssl_info.pinning_failure_log);
+}
+
+void CertificateErrorReporter::RequestComplete(net::URLRequest* request) {
   std::set<net::URLRequest*>::iterator i = inflight_requests_.find(request);
   DCHECK(i != inflight_requests_.end());
   scoped_ptr<net::URLRequest> url_request(*i);
   inflight_requests_.erase(i);
 }
 
-// TODO(palmer): Currently, the upload is fire-and-forget but soon we will
-// try to recover by retrying, and trying different endpoints, and
-// appealing to the user.
-void ChromeFraudulentCertificateReporter::OnResponseStarted(
-    net::URLRequest* request) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422516 ChromeFraudulentCertificateReporter::OnResponseStarted"));
-
-  const net::URLRequestStatus& status(request->status());
-  if (!status.is_success()) {
-    LOG(WARNING) << "Certificate upload failed"
-                 << " status:" << status.status()
-                 << " error:" << status.error();
-  } else if (request->GetResponseCode() != 200) {
-    LOG(WARNING) << "Certificate upload HTTP status: "
-                 << request->GetResponseCode();
-  }
-  RequestComplete(request);
-}
-
-void ChromeFraudulentCertificateReporter::OnReadCompleted(
-    net::URLRequest* request, int bytes_read) {}
-
 }  // namespace chrome_browser_net